Dear: all
That is very abnormality. 1.Open the url : http://127.0.0.1/showCookie.php ShowCookie.php code: <?php var_dump($_COOKIE); ?> That's print: [TCSPUBLICJAUTHM] => USER_ID=/zhW/2QXY/GUtIN7m4 dNQ== 2. The same window, input the string "javascript:alert(document.cookie);" and enter, it's show : 3. now , I change the showCookie.php <?php echo "<script>alert('" . $_COOKIE['TCSPUBLICJAUTHM'] . "');</script>"; var_dump($_COOKIE); ?> That's print: I think the cookie in php being changed. Look forward to your help